5982-65-0 Acetoacetic acid, 3-semicarbazone Acetoacetic acid, semicarbazone Butanoic acid, ethyl ester Ethyl acetoacetate semicarbazone NSC-404168 NSC404168 CAS 5982-65-0

Purity 97%+In StockPharmaceutical Standards
CAS No.5982-65-0
Molecular FormulaC7H13N3O3
Molecular Weight187.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5982-65-0 Acetoacetic acid, 3-semicarbazone Acetoacetic acid, semicarbazone Butanoic acid, ethyl ester Ethyl acetoacetate semicarbazone NSC-404168 NSC404168 CAS 5982-65-0 chemical structure

Description

As a certified reference material (CRM), 5982-65-0 Acetoacetic acid, 3-semicarbazone Acetoacetic acid, semicarbazone Butanoic acid, ethyl ester Ethyl acetoacetate semicarbazone NSC-404168 NSC404168 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

CATO supplies 5982-65-0 Acetoacetic acid, 3-semicarbazone Acetoacetic acid, semicarbazone Butanoic acid, ethyl ester Ethyl acetoacetate semicarbazone NSC-404168 NSC404168 (CAS 5982-65-0), a certified reference material (molecular formula C7H13N3O3, MW 187.20 g/mol) for analytical method development and quality control.

Structurally, 5982-65-0 Acetoacetic acid, 3-semicarbazone Acetoacetic acid, semicarbazone Butanoic acid, ethyl ester Ethyl acetoacetate semicarbazone NSC-404168 NSC404168 (C7H13N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 187.20 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC7H13N3O3
Molecular Weight187.20 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1958
Nitrogen Atoms3

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